ADVENTURE-READY DESIGNN/AN/AEndurance toN/AMatch Your OwnN/AThe shape of the Amazfit T-Rex Pro is tough and solid with distinct angles. Having passed 15 military-grade tests1 the watch can battle with you through hot deserts humid rainforests and polar glaciers. Witness endurance that braves the elements with ease.N/AN/AToughness from the Inside OutN/AThe Amazfit T-Rex Pro is a titanic combination of practicality strength and comfort.N/AN/AYOUR PARTNER IN EXPLORATIONN/AHit the Road and Face Whatever ComesN/AN/AThe Amazfit T-Rex Pro is high-level exploration partner supporting four Global Navigation SatelliteN/AN/ASystems 10 ATM water-resistance a blood-oxygen saturation measurement system a weatherN/AN/Atracker4 a sunrise and sunset monitor a current moon phase display a compass and barometricN/AN/Aaltimeter ultra-long 18-day battery life6 with typical use and over 100 different sports modes.N/AN/AExplore the UnknownN/AThe four Global Navigation Satellite Systems supported offer rapid positioning with a high-degree of accuracy. No matter where you go youll always know where you are.N/AN/ARide the Tide and Make a SplashN/AWith a 10 ATM grade the Amazfit T-Rex Pro is water-resistant to a depth of up to 100 meters so you can surf swim or explore the mysterious underwater world together.N/AN/AAscend Safely with Blood-oxygen Saturation MeasurementN/AIn high-altitude areas every meter you travel upward comes with greater challenges. The Amazfit T-Rex Pro will therefore alert you whenever it detects that you experience major altitude changes and prompt you to take the blood-oxygen saturation test. This test can also be taken whenever you feel uncomfortable in order to better protect your body.N/AN/AExercise to the Fullest andN/ATrack Your Every MoveN/AThe Amazfit T-Rex Pro features over 100 sports modes and can be used to monitor critical data such as workout heart rate distance traveled movement speed and calories burned in real time for most sports modes to help you track and improve your athletic performance.N/AN/AThe FirstBeat algorithm assesses specialized data such as your maximum oxygen uptake full recovery time and training load to quantify your accomplishments after each challenge.N/AN/AOur latest self-developed ExerSense workout recognition algorithm automatically recognizes eight sports modes and records corresponding workout data.N/AN/APROTECT YOURN/AHEALTH AND KEEP FITN/AN/AKeep Your Progress Ticking with Heart Rate MonitoringN/AThe Amazfit T-Rex Pro offers 24-hour heart rate monitoring and is able to provide instant alerts for high heart rate. Heart health is a top priority and so your Amazfit T-Rex Pro tracks it at all times and can also record your heart rate variability (HRV) throughout the day to monitor your stress level. Learning to relax is the first step in protecting your health.N/AN/AGet Personalized Evaluations with PAIN/APAI is a health assessment system that uses an algorithm to transform complex information such as heart rate activity duration and other health data into a single numerical value unique to each user. The PAI health assessment system supports most workout modes regardless of time or location and in addition also creates a customized health evaluation for each user to offer a personalized user experience.N/AN/AUnderstand Your Rest with Sleep Quality MonitoringN/ASleep quality is essential to health and so the Amazfit T-Rex Pro serves as your personal sleep assistant. The watch can recognize different sleep states - such as the light deep and REM sleep stages as well as daytime naps and monitors any potential breathing problems during your sleep.N/AN/AYour Ultimate Personal AssistantN/AThe Amazfit T-Rex Pro notifies you of any incoming text messages or calls scheduled alarms and events to prevent you from missing any important information. It can also easily control music playback on your mobile phone via Bluetooth so that you can enjoy your favorite playlists on-the-go.